Filter



mm m 'wmm 1,511,726

' W. A. HEINZE FILTER Filed Sept'. 5, 1922 QFa-tente Uct. lid, lid

WILLIAM a. nnvzn, or

CHICAGO, ILLINOIS, ASSIGNOJR. 0F ONE-HALE T0 PAUL 1B. MOKAJEN, OF CHICAGO, ILLINOIS.

FILTER.

application filed September 5, 1922. Serial No. 586,265.

To all whom it may concem:

Be it known that T, WILLIAM A. HEINZE, citizen of the United States, residmg at Chicago, in the county of Cook and State of.

followed by the liquid being filtered, and a transparent sleeve within the cage and sur: rounding the screen. I

In the preferred embodiment of the invention the inlet and outlet passages are at one end of the filter cage and there are a.

plurality of observing openings at the mid portion of this cage. The other end of the cage is formed with an opening into which a plug is preferably screwed and this plug is formed with a liquid receiving cavity in its inner face that receives water which is precipitated from the gasoline, there being an outlet passage in .the plugthrough which the water may be discharged when the smaller plug that normally closes this outlet passage is removed.

There is desirably also a pipe in communication with the first aforesaid outlet passage that is provided" at one end of the cage with the inlet passage, this pipe being preferably in threaded connection with the portion of the cage in which this passage. is provided and projecting from this cage portion toward the plug receiving portion of the cage. The pipe has its end which is nearer the plug receiving opening of the cage preferably closed and formed with a screwdriver slot whereby'it may be readily applied and removed.

A filter screen surrounds the pipe and is bound at its ends thereto, the pipe having an opening in its side between the bound ends of the screen whereby communication is established between the interiors of the screen and pipe. A filter thus constructed may readily be observed without taking it apart and may readily be taken apart when it is to be cleaned.

The invention will be more fully. explained by reference to the accompanying drawing in which Fig. 1 is a longitudinal sectional view of a filter as it is preferably i constructed; Fig. 2 is a sectional view on line 2-2 of Fig. 1; Fig. 3 illustrates the filter of my invention with some of the parts in separated relation and a portion of the screen broken away; Fig. 4. is a perspective view of the pipe which is. surrounded by the screen; and Fig. 5 is a longitudinal sectional view of a modification.

Like parts are indicated by similar characters of reference throughout the difierent figures.

Referring first more particularly to the structure shown in Figs. 1 to 4 inclusive, the filter illustrated includes a cage 1 formed at one end with an inlet passage 2 and an out- 7 let passage 3. The head portion of the filter is formed with four observing openings 5, 6, 7 and 8 which are distributed equidistantly around the cage which is generally cylin drical. A pipe 9 is in communication with 30 the outlet passa e 3 and is desirably in threaded connectlon with the portion of the cage in which this passage is provided. This pipe projects from this cage portion toward the other end of the cage and is desirably closed at the end thereof adjacent this latter cage end. A filter screen 10 surrounds the pipe and is bound at its ends thereto as indicated at 11 and 1 2. The pipe has lateral openings 13 between the bound ends of the screen, these openings serving to establish communication between the interiors of the pipe and screen. A glass or other transparent sleeve 14, preferably of cylindrical form,

is disposed within the cage and surrounds the screen, the condition of the filter bein observable through the openings 5, 6, 7 and 8 and the cylinder 14 that mechanically closes them. A gasket 15 seals the place of engagement of the upper end of the cylinder 14 with the seat in the cage that receives this cylinder end. A ring 16 is screwed within the lower end of the cage and carries a gasket 17 that is pressed against the lower end of the cylinder when the ring is screwed home. By this arrangement the cylinder becomes an integral part of the filter structure and co-operates with the up- I closure plug 22 is formed through ing or replacement.

.through the inlet 2 outlet 3'. The pipe 9 as changes may per and lower ends of the cage in confinin the gasoline or other liquid that is to be filtered and in directing the flow thereof. A closure plug 18 is screwed into the lower end of the filter cage normally to close the same and to permit the lower end of the cage to be open in order that the pipe 9 ma be screwed into position or removed for c ean To facilitate the assembly of the pipe with the cage the lower end of the pipe is formed with a screwdriver slot 19. a

The gasoline, for example, finds entry through the inlet passage 2, and thence through the screen 10 from which it flows through the openin s 13 and the bore of the pipe 9 to the out et 3. Solid impurities are caught upon the screen and water is precipitated into the liquid receiving cavity 20 formed in the top of the plug 18. An outlet passage 21 is formed in the plug 18 to be i in communication with the cavity 20. A screwed into the outlet passage 21 and may be removed to discharge the water without the necessity of removing the plug 18. When the impurities have collectedsuflioiently upon the screen the lug 18 is removed and the pipe 9 is remove together with the screen 10 thereon to enable the screen to be cleaned:

The structure shown similar to that shown in the remaining fig ures and similar parts are given similar characters of reference.

In the structure of Fig. 5, however, the flow of gasoline is preferably reversed, finding access to the interior of the filter and exit through the in the structure of 5 terminates at the top of the screen. screen is cup-shaped and. hasits lower end assembled between the gasket 23 and the ring 16 instead of being tied to the p Vhile I have herein shown and particularly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction shown readily be made without departing from the spirit of my invention, but having thus described myvinvention I claim as new and desire'to secure by Letters Patent the following 1. A filter including a cage formed at one end with inlet and outlet passages, at its mid portion 'with an observing o ning the wall thereof, ancl at its other end with a plug receiving opening;

' a pipe in communication with the outlet passage and in threaded connection with the portion of the cage in which this passage is provided and projecting from this cage portion toward the plug receiving portion of the cage, said pipe havingiits end that is nearer the plug receiving opening of the inFig. 5 is generally.

g cage closed and formed with a. screwdriver ing an opening in its side between the bound ends ofthe screen; a transparent sleeve within the cage and surrounding the screen; gaskets interposed between the ends of the sleeve and the cage to establish sealed ti ht assemblage between the cage and sleeve; a closure plug screwed into the plug receiving opening of the cage, this plug being formed with a liquid receiving cavity in its inner face and with an outlet passage communicating with this cavity; and a closure in the outlet passage of the plug.

2. A filter including a cage formed at one end with inlet and outlet passages, at its mid portion with an observing opening formed through the wall thereof, and at its other end with a closure receiving openin a pipe in communication with one of the aforesaid passages and in threaded connection with the portion of the cage in which this passageis provided and pro ecting from this cage portion toward the closure receiving portion of the cage, said pipe having its end that is nearer the closure receiving opening of the cage closed and formed with a screwdriver slot; a filtering screen surrounding said pipe and bound at its ends thereto, the pipe having an opening in its side between the bound ends of the screen; a transparent sleeve within the cage and surrounding the screen; a ring screwed into the cage against the sleeve; a closure for the closure receiving opening of the cage, this closure being formed with a liquid receiving cavity in its inner face and with an outlet passage communicating with this Eavity; and a closure in this outlet passage.

3. A filter including a cage formed at one end with inlet and outlet passages, at its mid portion with an observing opening formed through the wall thereof, and at its other end with a closure receiving opening; a pipe in communication with one of the aforesaid passages and in threaded connection with the portion of the cage in which this passage is provided and prQ ecting from this cage portion toward the closure receiving portion of the cage, said pipe having its end that is nearer the closure receivin opening of the cage closed and formed with a screwdriver slot; a filtering screen surrounding said pipe and bound at its ends thereto, the pipe having an opening in its side between the bound ends of the screen; a transparent-sleeve within the cage and surrounding the screen a ring screwed into the cage against the sleeve; and a closure for the closure receiving opening of the ea c.

A filter including a cage formed at one end with inlet and outlet passages, at its mid portion with an observing opening tarmac formed through the wall thereof, and at its other end with a closure receiving opening; a pipe in communication with one of the aforesaid passages and in threaded connection with the portion. of the c in which this passage is provided and pro ecting from this cage portion toward the closure receiving portion of the cage, said pipe having its end that is nearer the closure receiving opening of the cage closed and formed with a screwdriver slot; a filtering screen surrounding said pipe and bound at its ends thereto, the pipe having an opening in its side between the bound ends of the screen; a transparent sleeve within the cage and surrounding the screen; and a closure for the closure receiving opening of the cage.

5. A filter including a cage formed at one end with inlet and outlet passages, at its mid portion with an observing opening formed through the wall thereof, and at its other end with a closure receiving opening; a pipe withinthe cage and in communication with one of the aforesaid passages and projecting from this cage portion toward the closure receiving portion of the cage, said pipe having its end that is nearer the closure receiving opening of the cage closed; a filtering screen surrounding said pipe and bound at its ends thereto, the pi e aving an opening in its side between t e hound ends of the screen; a transparent sleeve within the cage and surrounding the screen; and a closure for the closure receiving opening of the cage.

In witness whereof, ll hereunto subscribe mygname this 31st day of August A. D., 192

LLIAM A. HEINZE. 

